All categories

3 years ago

A moving car backs into a parked car in a parking lot. Why would the bumpers on both cars be dented?

Physics

1 answer:

Rudiy273 years ago

7 0

Answer:

Because the bumpers are a crumple zone.

You might be interested in

An object accelerates from rest with a constant acceleration of 2 m/s2. How far will it have moved after 9s?

maw [93]

As per the question the, the initial velocity of object [u] =0

The acceleration of the block $[a]=2\ m/s^2$

The time taken by the object[t] = 9 s.

We are asked to calculate the distance travelled by the object in that time.

As per equation of kinematics we know that-

$s=\ ut+\frac{1}{2} at^2$

Here s is the distance travelled by the object.

$=0*9+\frac{1}{2} 2*[9]^2\ m$

$=81\ m$ [ans]

5 0

4 years ago

If mass (M), Velocity (V) and length (L) are considered as fundamental quantities in certain system of unit. Find the dimensiona

Mama L [17]

Answer:

Explanation:

MLT^-2

.....

3 0

2 years ago

Maria listed four important points about einstein’s special theory of relativity. 1) applies to any object moving more slowly th

Arturiano [62]

How Maria can correct her error is by changing the fourth point to "applies to accelerating objects.". Option D. This is further explained below.

<h3>What is einstein’s special theory of relativity?</h3>

Generally, Einstein’s special relativity is simply defined as how speed affects matter, time, and space.

In conclusion, The theory contains a method for defining the link between energy and matter using the speed of light.

Read more about Motion

brainly.com/question/605631

#SPJ4

3 0

3 years ago

What kind of energy bombarded the seeds were included on the outside of the ISS?

Alex Ar [27]

Explanation:

ultraviolet radiation

Bombarded with energy

They stored the seeds in a single layer on the outside of the ISS behind a special kind of glass that let in ultraviolet radiation only at wavelengths between 110 and 400 nanometers

5 0

3 years ago

A submarine heads toward a port, which broadcasts a signal at 175 MHz. If the submarine heads toward the port at 46 m/s, what ch

Usimov [2.4K]

Answer:

Δf = 0.00003 MHz = 30 Hz

Explanation:

The apparent frequency due to the motion of receiver towards the source is given by Doppler's effect, while the source is stationary. Therefore, the formula is given as follows:

$f = (\frac{c+v_{o} }{c})f_{0}$

where,

f = apparent frequency

c = speed of light = 3 x 10⁸ m/s

v₀ = velocity of observer = 46 m/s

f₀ = Original Frequency = 175 MHz = 175 x 10⁶ Hz

Therefore,

$f = (\frac{300000000 m/s + 46 m/s}{300000000 m/s})(175 MHz)\\$

f = 175.00003 MHz

Therefore, the change in frequency is:

Δf = f - f₀

Δf = 175.00003 MHz - 175 MHz

4 0

3 years ago